package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) {
        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
            Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                    "root",
                    "root");
            Statement statement = connection.createStatement();

            String sql = "UPDATE user\n" +
                    "SET password = '666666',nickname = '老三',age = 50\n" +
                    "WHERE id = 1;";
            int num = statement.executeUpdate(sql);
            if(num > 0){
                System.out.println("修改成功");
            }else{
                System.out.println("修改失败");
            }
            connection.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
